...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Send a websocket pong control frame.
void pong( ping_data const& payload, error_code& ec);
This function is used to send a pong frame, which is usually sent automatically in response to a ping frame from the remote peer.
The call blocks until one of the following conditions is true:
The algorithm, known as a composed operation, is
implemented in terms of calls to the next layer's write_some
function.
WebSocket allows pong frames to be sent at any time, without first receiving a ping. An unsolicited pong sent in this fashion may indicate to the remote peer that the connection is still active.
Name |
Description |
---|---|
|
The payload of the pong message, which may be empty. |
|
Set to indicate what error occurred, if any. |